<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	
</body>
</html>
<script src='jquery源码分析.js'></script>
<script>
var sj = $.noConflict();
	sj(function($){
		alert(this);
		alert($);
	});

$(document).ready(function(){
	alert(123);
});

$(document).on("ready",function(){

});  ===>这种的dom触发是400行的
		if ( jQuery.fn.trigger ) {
			jQuery( document ).trigger("ready").off("ready");
		}

</script>